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Totally-closed maintenance-free threaded fitting

A maintenance-free, fully enclosed technology, applied in the direction of pipes/pipe joints/fittings, through components, sealing surface connections, etc., can solve the problems of non-disassembly, increased difficulty of pipeline maintenance and cleaning, and increased maintenance costs. Achieve the effects of low cost of accessories, reduced maintenance cost, and reliable sealing performance

Inactive Publication Date: 2016-09-14
张超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] PVC pipe is a common type of pipe. In the prior art, the pipe is usually connected by hot melting. This connection has the advantages of high connection strength and reliable sealing, but the disadvantage of not being disassembled after connection is also very prominent.
Since it is not disassembled, it is more difficult to maintain and clean the pipeline, and the maintenance cost increases

Method used

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  • Totally-closed maintenance-free threaded fitting
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  • Totally-closed maintenance-free threaded fitting

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Embodiment Construction

[0011] The present invention will be further described below in conjunction with accompanying drawing:

[0012] This embodiment includes a joint 1 and a pipe body 5. The end of the pipe body 5 is inserted into the joint 1. In the prior art, whether it is a hot-melt connection structure or a connection structure that is sealed and connected by any gasket, the connection Sometimes there are special requirements for the cut flatness of the end face of the pipe body 5 or the prefabricated structure outside the end of the pipe body 5, the operation difficulty of the connection is high, and the versatility of the pipe fittings is relatively poor. Compared with the above two connection methods, the plug-in connection method adopted here does not have any requirements on the flatness of the end surface of the pipe body 5, and does not need to prefabricate any connection structure at the end of the pipe body 5, which not only reduces the difficulty of operation, but also improves It no...

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Abstract

The invention belongs to the field of pipeline devices and particularly relates to a totally-closed maintenance-free threaded fitting. The totally-closed maintenance-free threaded fitting comprises a connector and a pipe body. The end of the pipe body is inserted into the connector, a stop opening is formed in the end of the connector, a sealing ring is arranged in the stop opening, the pipe body is sleeved with a locking ring, the sealing ring is sealed in the stop opening through the locking ring, a retreat stopping structure for preventing the pipe body from being pulled out of the connector is arranged on the inner side of the locking ring, the retreat stopping structure is composed of at least two parallel annular protrusions, the locking ring is installed on the connector through a pressing cap, the pressing cap is in threaded connection with the connector, a set of matched conical faces are arranged on the outer side of the locking ring and the inner side of the pressing cap, the locking ring is provided with a notch and an incision, and the notch and the incision are symmetrically formed. Detachable design is adopted, frequent disassembly and assembly can be achieved after connection, the fitting cannot be damaged in the maintenance or redirection process, and therefore the maintenance cost is reduced.

Description

technical field [0001] The invention belongs to the field of pipeline devices, in particular to a fully enclosed maintenance-free threaded pipe fitting. Background technique [0002] PVC pipes are commonly used pipes. In the prior art, the pipes are usually connected by hot melting. This connection has the advantages of high connection strength and reliable sealing, but the disadvantage of being non-detachable after connection is also very prominent. Since it cannot be disassembled, the difficulty of maintenance and cleaning of the pipeline increases, and the maintenance cost increases. Contents of the invention [0003] The present invention provides a fully enclosed maintenance-free threaded pipe fitting to solve the problems raised in the above-mentioned background technology. [0004] The technical problem solved by the present invention is achieved by the following technical solutions: The present invention provides a fully enclosed maintenance-free threaded pipe fit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/02
CPCF16L19/02
Inventor 张超
Owner 张超
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